First of all, the Q38 bus route is pointless. You can walk from one terminus to the other in as little as 8 minutes!
Secondly, the Q12 REALLY needs artics. The number of people that ride the route is sufficient enough for the MTA to conclude that the Q12 deserves artics.
Thirdly, the Q25 needs SBS treatment because of the number of people that ride it and the long time it takes to get from one terminus to the other.